Coal-drilling machine.



N0. 877,597.. I PATENTED JAN. 28, 1908.

J. N. RIGKLES.

GOAL DRILLING MACHINE.

APPLICATION FILED AUG. 3, 1906.

III/III WWI/ILI/Iillllllllfl xllimi r": NORRIS PETERS cm. WASHINGTON. n4:4

JASPER NUTEN RICKLES, OF ALTOONA, ALABAMA.

COAL-DRILLING MACHINE.

Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filed August 3, 1906. Serial No. 329076.

a citizen of the United States, residing at Altoona, in the county ofEtowah and State of Alabama, have invented a new and usefulCoal-Drilling Machine, of which the following is a specification.

This invention relates articularly to means for drilling coal and. ikesubstances, but is not necessarily limited to this use.

In Patent No. 845,898, dated March 5, 1907, there is disclosed amanually-operated drilling machine having decidedly advantageousfeatures, but it has been found that under certain conditions, the bodyof the machine has a tendency to twist or turn, instead of effecting therotation of the drill.

One of the principal objects is to provide a novel and simple structurethat will support the drilling mechanism and eliminate all liability ofthe said body turning, said struc ture being adjustable to differentheights in order that the drilling mechanism will be properly positionedto the seams of coal or other material to be drilled.

Another and important object is to provide a structure wherein thepresser head is adjustable in order that the same can be placed in theposition considered most desirable by the operator.

An embodiment of the invention, that is at presen tconsidered thepreferable one, is illustrated. in the accompanying drawings, wherelIlIFigure 1 is a view partly in section and partly in elevation of saidmechanism. Fig. 2 is a horizontal sectional view through a rear portionof the same. Fig. 3 is a sectional view on the line 33 of Fig. 2. Fig. 4is a detail perspective view of the lower portion of the supportingstandard.

Similar reference numerals designate corresponding parts in all thefigures of the draw ings.

In the embodiment, a support is employed that is in the form of astandard. This standard consists of a plurality of telescoped sections.An intermediate tubular section 5 has slidably mounted in its upper enda rod section 6, and in its lower end another tubular section 7. Thesevarious sections are arranged to be held against relative movement byset screws 8. The upper rod section 6 is of small enough diameter toenter the lower- II1OSJD section 7, and it will be clear that thebodiment, has outstanding pin support or standard can thus be expandedand contracted. The lower end of the lowermost section7 is provided witha cross bar 9, constituting a foot-piece, which is provided withterminal spurs 10. The upper end of the uppermost section has a yoke 11.

The drilling mechanism is substantially the same as that set forth inthe patent to which reference has been made, and therefore need not bespecifically described. fice it to state that a stock 12 is employedhaving a tool holder 13, journaled in one end, said tool holder beingoperated by handle cranks 14 through the medium of gearing 15 that isjournaled on the stock. The rear portion of the stock 12, in the presentemt es .16 that are journaled in the yoke 11, and thus the Sufdrillingmechanism is pivotally mounted on I opposite sides of the standard, andpresses against the head 19, at the same time rotating the handle crank.It will thus be seen that the body of the drilling mechanism is securelyheld against rotation, and is supported by the holding means. At thesame time, the cross bar 9, with the spurs 10, constitutes a bearing onWhich the standard swings, so that the feed of the tool is secured. Theadjustment of the presser head 19 is important, in that it permits theoperator to position said presser head in the most convenient relationto the other parts.

From the foregoing, it is thought that the construction, operation, andmany advantages of the herein described invention Will be apparent tothose skilled in the art, without further description, and it will beunderstood that various changes in the size, shape, proportion, andminor details of construction may be resorted to without departing fromthe spirit or sacrificing anyof the advantages of the invention.

Having thus fully described my invention,

what I claim as new, and, desire to secure by Letters Patent, is

1. In vmechanism of the character set forth, the combination with asupporting standard, of drilling mechanism mounted on the upper portionof the standard, a foot bar having an intermediate portion secured tothe standard and constituting a support on which the standard swings,and depending spurs carried bythe foot bar and located on opposite sidesof the standard.

2. In mechanism of the character set forth, the combination with asupporting standard comprising slidably telescoped sections, of meansfor holding the sections against relative movement, a cross bar car riedby the lower end of the lowermost section and having terminal dependingspurs,

and manually actuated drilling mechanism pivotally mounted on the upperend of the uppermost section.

3. In mechanism of the character set forth, the combination with aswinging support, of a stock pivoted between its ends upon the upper endof the swinging support, a tool holder rotatably mounted on one end ofthe stock, driving means for the tool holder journaled on the stockbetween the said tool holder and the support, and a presser head mountedon the stock and located on the opposite side of the support to the toolholder and driving means.

4.1In mechanism of the character set forth, the combination with aswinging standard, of a stock pivoted between its ends upon the upperend of the swinging standard, a tool holder rotatably mounted on one endof the stock, driving means for the tool holder journaled on the stockbetween the said tool holder and the support, and a presser head mountedon the stock and located on the opposite side of the support one end ofthe stock, gearing journaled' on the stock for operating the toolholder, and a presser head slidably connected to the stock and disposedon the opposite side of the same to the gearing.

In testimony, that I claim the foregoing as my own, I have heretoafIiXed my signature in the presence of two witnesses.

JASPER NUTEN RICKLES.

Witnesses:

EUGENE U NDERWOOD,

JOHN H. SIGGERS.

